SINGLE INCREMENTAL DUMBBELL ADJUSTABLE WEIGHTS: Stay challenged & get better with the right weight! The PowerFlow X is a cleverly engineered single weights dumbbell set with precise adjustment in 10lbs increments. EASY DUMBBELL WEIGHTS ADJUSTMENT: Just pull & slide the dumbbell weights adjustment knob to select the desired weight & you're ready to train hard! Safe locking allows you to lift with confidence. THE POWERFUL YOU WITHOUT THE GYM: The Lifepro adjustable dumbbell is your all-in-one space saving free weights set for home gym. Add it to your workout routine & enjoy varied whole-body training. STAY TONED ANYTIME, ANYWHERE: This adjustable dumbbell is your compact & travel-ready fitness companion so you can boost performance & build lean muscles wherever you go & whenever you need. SAFE & QUIET WORKOUTS: Lift harder - get stronger! Our adjustable dumbbell features a stable grip & durable molding around the weight plates. No slips, no clinks! Simply grab, lift & repeat!